Dissolved Barium and Particulate Rare Earth Elements as Tracers for Shelf-Basin Interaction in the Arctic Ocean
File | Description | Size | Format | |
---|---|---|---|---|
00102399-1.pdf | 13.39 MB | Adobe PDF | View/Open |
Other Titles: | Gelöstes Barium und partikuläre Seltenerdmetalle als Tracer für Interaktion der Schelfmeere und Becken im Arktischen Ozean | Authors: | Roeske, Tobias | Supervisor: | Rutgers van der Loeff, Michiel ![]() |
1. Expert: | Schlüter, Michael ![]() |
Experts: | Bach, Wolfgang ![]() |
Abstract: | This study gives an outlook on the usability of dissolved Ba and particulate rare earth elements as oceanographical tracers in the Arctic Ocean. It is integrated into a sub-project focussing on tracers for the identification of freshwater sources of the European integrated project DAMOCLES (Developing Arctic Modelling and Observing Capabilities for Long-term Environmental Studies). From Polarstern expedition ARK-XXII/2 in summer 2007, dissolved Ba and particulate REE were analyzed in the Barents, Kara, Laptev seas, the Eurasian Basins and the Makarov Basin up to and beyond the Alpha and Mendeleyev Ridges. In chapter 2 I discuss Ba as a tracer in discerning Eurasian from North American runoff together with well established water mass tracers (salinity, d18O, nutrients). In chapter 3 I investigate how dissolved Ba of intermediate and deep waters may be used together with Al and silicate to describe exchange of waters from the shelf seas with the interior basins. In chapter 4 I describe REE patterns in suspended particulate matter from surface water in a wider context illustrating the contrast between the remote Southern Ocean and the nearly land locked Arctic Ocean. |
Keywords: | Barium; Rare Earth Elements; Arctic Ocean; Shelf; Basin; DAMOCLES | Issue Date: | 30-Nov-2011 | Type: | Dissertation | Secondary publication: | no | URN: | urn:nbn:de:gbv:46-00102399-12 | Institution: | Universität Bremen | Faculty: | Fachbereich 05: Geowissenschaften (FB 05) |
Appears in Collections: | Dissertationen |
Page view(s)
544
checked on Apr 2, 2025
Download(s)
132
checked on Apr 2, 2025
Google ScholarTM
Check
Items in Media are protected by copyright, with all rights reserved, unless otherwise indicated.